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25150105 = 52925981
BaseRepresentation
bin101111111110…
…0001010011001
31202022202110101
41133330022121
522414300410
62255015401
7423525631
oct137741231
952282411
1025150105
1113218712
12850a561
135297626
1434a96c1
15231bd3a
hex17fc299

25150105 has 12 divisors (see below), whose sum is σ = 31261932. Its totient is φ = 19423040.

The previous prime is 25150087. The next prime is 25150133. The reversal of 25150105 is 50105152.

It can be written as a sum of positive squares in 6 ways, for example, as 3069504 + 22080601 = 1752^2 + 4699^2 .

It is not a de Polignac number, because 25150105 - 219 = 24625817 is a prime.

It is a super-2 number, since 2×251501052 = 1265055563022050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1215 + ... + 7195.

It is an arithmetic number, because the mean of its divisors is an integer number (2605161).

Almost surely, 225150105 is an apocalyptic number.

It is an amenable number.

25150105 is a deficient number, since it is larger than the sum of its proper divisors (6111827).

25150105 is an equidigital number, since it uses as much as digits as its factorization.

25150105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6044 (or 6015 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 25150105 is about 5014.9880358781. The cubic root of 25150105 is about 292.9858193776.

Adding to 25150105 its reverse (50105152), we get a palindrome (75255257).

The spelling of 25150105 in words is "twenty-five million, one hundred fifty thousand, one hundred five".

Divisors: 1 5 29 145 841 4205 5981 29905 173449 867245 5030021 25150105